FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/@vitest/expect/README.md

@@ -0,0 +1,17 @@
+# @vitest/expect
+
+Jest's expect matchers as a Chai plugin.
+
+## Usage
+
+```js
+import * as chai from 'chai'
+import { JestAsymmetricMatchers, JestChaiExpect, JestExtend } from '@vitest/expect'
+
+// allows using expect.extend instead of chai.use to extend plugins
+chai.use(JestExtend)
+// adds all jest matchers to expect
+chai.use(JestChaiExpect)
+// adds asymmetric matchers like stringContaining, objectContaining
+chai.use(JestAsymmetricMatchers)
+```